Abstract:
Provided is an armature for a rotating electrical machine, which is capable of improving heat dissipation performance of an edgewise coil to enhance efficiency of the rotating electrical machine. The armature for a rotating electrical machine includes: a core including a yoke section and a tooth section that protrudes from the yoke section; an edgewise coil to be inserted onto the tooth section through intermediation of an insulating member, the edgewise coil being formed by winding a rectangular wire having a rectangular conductor cross-section through edgewise bending; and a heat transfer member filled into a gap between the tooth section and the edgewise coil. The armature has different gaps formed at two regions between the tooth section and a long side of the edgewise coil.
Abstract:
A rotary electric machine includes a stator in which a plurality of armatures each have a coil formed by a winding wire wound in plural layers around bobbins mounted to a magnetic pole tooth, which are disposed annularly on an inner circumference of a cylindrical frame. The coil is formed by the winding wire being wound with a constant feed pitch in parallel with slots of the bobbins in plural layers. The winding wire forming a first layer of the coil is shifted by half the feed pitch between a left side and a right side of a center axis of the coil as viewed from a plane perpendicular to a stacking direction of a stacked iron core.
Abstract:
A permanent magnet rotor has a rotor core positioned about a rotation shaft. The permanent magnet rotor also has permanent magnet embedment slots located at equally spaced positions from the rotation shaft, with permanent magnets inserted into each of the respective permanent magnet embedment slots. The permanent magnet embedment slots each have both a magnet storing portion, and a buffer and other members storing portion which extends to the magnet storing portion. Once a permanent magnet is stored inside the magnet storing portion, a buffer member, and a pushing member are used to secure the permanent magnet inside the rotor core.
Abstract:
A holding jig is made into cylindrical body that has a conductor insertion aperture, and a conductor end portion is inserted into the conductor insertion aperture in a loosely-fitted state and held. The holding jig is moved along an arc that has a radius L that is centered around a projecting root portion of the conductor end portion to a vicinity of a coil end to bend and form the conductor end portion into a desired lead around shape.
Abstract:
Respective divided segments of a collet are moved radially outward by moving an arbor axially. The respective divided segments thereby press an inner circumferential surface of a stator core of a stator from radially inside such that the stator is held coaxially by the collet. Next, shaping rollers are lowered so as to press an outer circumferential surface of the stator core. The stator is rotated by rotating the collet in that state. Thus, the inner circumferential surface of the stator core is compressed and plastically deformed so as to conform to the collet and the outer circumferential surface of the stator core is compressed and plastically deformed by the shaping rollers, correcting the inner circumferential surface and the outer circumferential surface of the stator core so as to be coaxial and so as to have a high degree of roundness.
Abstract:
A mail sorting and distributing transfer system, which smoothly conveys mail on a mail sorting line having a compound curve whose line is not in a plane, but is three-dimensional, whereby the mail can be reliably transferred to a conveyor basket and conveying power savings are achieved. The system 100 receives mail in a transfer basket 120 hung at an outer circumferential edge of a mail sorting and distributing turn table 110 and transfers the mail through a transfer port 122 to a conveyor basket 130, which circulates on a mail sorting line O. The conveyor basket 130 includes an inner circumferential side carriage 131 and an outer circumferential side carriage 132, which respectively travel on an inner circumferential side rail 142 and an outer circumferential side rail 143 of the mail sorting line O while hanging a basket body 133 by both sides in a carried state.
Abstract:
A holding jig is made into cylindrical body that has a conductor insertion aperture, and a conductor end portion is inserted into the conductor insertion aperture in a loosely-fitted state and held. The holding jig is moved along an arc that has a radius L that is centered around a projecting root portion of the conductor end portion to a vicinity of a coil end to bend and form the conductor end portion into a desired lead around shape.
Abstract:
A stator includes multiple bus bars formed in an annular shape and laminated in a radial direction and an insulation member covering both radial side surfaces and both axial end faces of each bus bar, and the insulation member contains a sheet-like insulation member covering both radial side surfaces and the axial end face of each bus bar.
Abstract:
The rotary electric machine includes: a stator (1) of concentrated winding in which a stator winding (14) is wound around a stator core (11), the stator core including a coil bobbin (13) and an insulating paper (12); and as a mechanism for supporting a terminal portion of the stator winding extending from the stator disposed in an annular shape, an end portion supporting member (18) for supporting a winding finishing end portion of the stator winding in a substantially linear section (16) of the stator winding, the substantially linear section being provided from a last winding portion of the coil bobbin to the winding finishing end portion.
Abstract:
Insulators are respectively disposed such that longitudinal directions of trunk portions are oriented in a radial direction of teeth, and so as to place bottom surfaces of the trunk portions alongside two axial end surfaces of the teeth, concentrated winding coils are configured by winding conductor wires so as to be wound in multiple layers around the teeth so as to pass through a concave space that is formed by the trunk portions and first and second flange portions at two axial ends of the teeth, the second flange portion is disposed on an end surface of a core back of a stator core, and a temperature detecting element is installed by being inserted into an element insertion aperture that is formed on the second flange portion so as to be able to detect a temperature of a coil end of the concentrated winding coils.